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Panasonic S1 vs Pentax K-S1

The Panasonic Lumix DC-S1 and the Pentax K-S1 are two digital cameras that were officially introduced, respectively, in February 2019 and August 2014. The S1 is a mirrorless interchangeable lens camera, while the K-S1 is a DSLR. The cameras are based on a full frame (S1) and an APS-C (K-S1) sensor. The Panasonic has a resolution of 24 megapixels, whereas the Pentax provides 20 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Panasonic S1
versus
Pentax K-S1
Panasonic S1 Pentax K-S1
Mirrorless system camera Digital single lens reflex
Leica L mount lenses Pentax K mount lenses
24 MP, Full Frame Sensor 20 MP, APS-C Sensor
4K/60p Video 1080/30p Video
ISO 100-51,200 (50 - 204,800) ISO 100-51,200
Electronic viewfinder (5760k dots) Optical viewfinder
3.2 LCD, 2100k dots 3.0 LCD, 921k dots
Fully flexible touchscreen Fixed screen (not touch-sensitive)
9 shutter flaps per second 5.4 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodynot weather sealed
400 shots per battery charge410 shots per battery charge
149 x 110 x 97 mm, 1017 g 121 x 93 x 70 mm, 558 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DC-S1 and the Pentax K-S1? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

An illustration of the physical size and weight of the Panasonic S1 and the Pentax K-S1 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.

The K-S1 can be obtained in four different colors (black, grey, orange, white), while the S1 is only available in black.

Size Panasonic S1 vs Pentax K-S1
Compare S1 versus K-S1 top
Comparison S1 or K-S1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-S1 is considerably smaller (31 percent) than the Panasonic S1. Moreover, the K-S1 is substantially lighter (45 percent) than the S1. It is worth mentioning in this context that the S1 is splash and dust resistant, while the K-S1 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the S1 gets 400 shots out of its DMW-BLJ31 battery, while the K-S1 can take 410 images on a single charge of its D-LI109 power pack. The power pack in the S1 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic S1 149 mm 110 mm 97 mm 1017 g 400 Y Feb 2019 2,499 i
2.
 
Pentax K-S1 121 mm 93 mm 70 mm 558 g 410 n Aug 2014 749 i
3.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 2,499 i
4.
 
Leica SL2-S 146 mm 107 mm 83 mm 931 g 510 Y Dec 2020 4,895 i
5.
 
Leica SL 147 mm 104 mm 39 mm 847 g 400 Y Oct 2015 7,450 i
6.
 
Nikon D5300 125 mm 98 mm 76 mm 480 g 600 n Oct 2013 799 i
7.
 
Nikon D600 141 mm 113 mm 82 mm 850 g 900 Y Sep 2012 2,099 i
8.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 1,999 i
9.
 
Panasonic S1R 149 mm 110 mm 97 mm 1016 g 380 Y Feb 2019 3,699 i
10.
 
Panasonic S1H 151 mm 114 mm 110 mm 1052 g 400 Y May 2019 3,999 i
11.
 
Pentax K-S2 123 mm 91 mm 73 mm 678 g 410 Y Feb 2015 749 i
12.
 
Pentax K-500 130 mm 97 mm 71 mm 646 g 710 n Jun 2013 549 i
13.
 
Pentax K-3 131 mm 100 mm 77 mm 800 g 560 Y Oct 2013 1,299 i
14.
 
Sony A99 II 143 mm 104 mm 76 mm 849 g 490 Y Sep 2016 3,199 i
15.
 
Sony A68 143 mm 104 mm 81 mm 610 g 540 n Nov 2015 699 i
16.
 
Sony A850 156 mm 117 mm 82 mm 895 g 880 Y Aug 2009 1,999 i
17.
 
Sony A900 156 mm 117 mm 82 mm 895 g 880 Y Sep 2008 2,999 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The K-S1 was launched at a markedly lower price (by 70 percent) than the S1, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

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Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Panasonic S1 features a full frame sensor and the Pentax K-S1 an APS-C sensor. The sensor area in the K-S1 is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Panasonic S1 and Pentax K-S1 sensor measures

With 24MP, the S1 offers a higher resolution than the K-S1 (20MP), but the S1 nevertheless has larger individual pixels (pixel pitch of 5.94μm versus 4.28μm for the K-S1) due to its larger sensor. Moreover, the S1 is a much more recent model (by 4 years and 5 months) than the K-S1, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Panasonic S1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the S1 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Pentax K-S1 are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.

Unlike the K-S1, the S1 has the capacity to capture high quality composite images (96MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Panasonic Lumix DC-S1 has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-204800. The corresponding ISO settings for the Pentax K-S1 are ISO 100 to ISO 51200 (no boost).

S1 versus K-S1 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under review, the S1 provides substantially higher image quality than the K-S1, with an overall score that is 17 points higher. This advantage is based on 1.7 bits higher color depth, 1.5 EV in additional dynamic range, and 1.7 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.53333 95
2.
 
Pentax K-S1 APS-C 20.0 5472 36481080/30p23.513.01061 78
3.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.33394 90
4.
 
Leica SL2-S Full Frame 24.0 6000 40004K/60p25.214.13504 95
5.
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.41821 88
6.
 
Nikon D5300 APS-C 24.0 6000 40001080/60p24.013.91338 83
7.
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.22980 94
8.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p...... ..
9.
 
Panasonic S1R Full Frame 46.7 8368 55844K/60p26.414.13525 100
10.
 
Panasonic S1H Full Frame 24.0 6000 40006K/30p...... ..
11.
 
Pentax K-S2 APS-C 20.0 5472 36481080/30p...... ..
12.
 
Pentax K-500 APS-C 16.1 4928 32641080/30p23.713.11087 79
13.
 
Pentax K-3 APS-C 24.1 6016 40001080/60i23.713.41216 80
14.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.42317 92
15.
 
Sony A68 APS-C 24.0 6000 40001080/60i24.113.5701 79
16.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.21415 79
17.
 
Sony A900 Full Frame 24.4 6048 4032none23.712.31431 79

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the S1 provides a higher video resolution than the K-S1. It can shoot video footage at 4K/60p, while the Pentax is limited to 1080/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the S1 has an electronic viewfinder (5760k dots), while the K-S1 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the S1 has a higher magnification than the one of the K-S1 (0.78x vs 0.63x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Panasonic S1 and Pentax K-S1 in connection with corresponding information for a sample of similar cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Panasonic S15760 Y 3.2 2100 full-flex Y 1/8000s 9.0 n Y
2.
 
Pentax K-S1optical n 3.0 921 fixed n 1/6000s 5.4 Y Y
3.
 
Canon R63690 n 3.0 1620 swivel Y 1/8000s 12.0 n Y
4.
 
Leica SL2-S5760 Y 3.2 2100 fixed Y 1/8000s 20.0 n Y
5.
 
Leica SL4400 Y 3.0 1040 fixed Y 1/8000s 11.0 n n
6.
 
Nikon D5300optical n 3.2 1037 swivel n 1/4000s 5.0 Y n
7.
 
Nikon D600optical Y 3.0 921 fixed n 1/4000s 5.5 Y n
8.
 
Panasonic S52360 n 3.0 1840 full-flex Y 1/8000s 7.0 n Y
9.
 
Panasonic S1R5760 Y 3.2 2100 full-flex Y 1/8000s 9.0 n Y
10.
 
Panasonic S1H5760 Y 3.2 2330 swivel Y 1/8000s 9.0 n Y
11.
 
Pentax K-S2optical n 3.0 921 swivel n 1/6000s 5.4 Y Y
12.
 
Pentax K-500optical n 3.0 921 fixed n 1/6000s 6.0 Y Y
13.
 
Pentax K-3optical Y 3.2 1037 fixed n 1/8000s 8.3 Y Y
14.
 
Sony A99 II2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y
15.
 
Sony A681440 Y 2.7 460 tilting n 1/4000s 8.0 Y Y
16.
 
Sony A850optical Y 3.0 922 fixed n 1/8000s 3.0 n Y
17.
 
Sony A900optical Y 3.0 922 fixed n 1/8000s 5.0 n Y

One feature that is present on the S1, but is missing on the K-S1 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the S1 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Panasonic S1 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The S1 writes its imaging data to SDHC or XQD cards, while the K-S1 uses SDXC cards. The S1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the K-S1 only has one slot. The S1 supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the K-S1 can use UHS-I cards (up to 104 MB/s).

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Panasonic Lumix DC-S1 and Pentax K-S1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Panasonic S1YstereomonoYYfull3.1Y-Y
2.
 
Pentax K-S1Ystereomono--micro2.0---
3.
 
Canon R6YmonomonoYYmicro3.2Y-Y
4.
 
Leica SL2-SYstereomonoYYfull3.2Y-Y
5.
 
Leica SLYstereomonoYYfull3.0Y--
6.
 
Nikon D5300YstereomonoY-mini2.0Y--
7.
 
Nikon D600YmonomonoYYmini2.0---
8.
 
Panasonic S5YstereomonoYYmicro3.2Y-Y
9.
 
Panasonic S1RYstereomonoYYfull3.1Y-Y
10.
 
Panasonic S1HYstereomonoYYfull3.1Y-Y
11.
 
Pentax K-S2YmonomonoY-micro2.0YY-
12.
 
Pentax K-500Ymonomono---2.0---
13.
 
Pentax K-3YmonomonoYYmini3.0---
14.
 
Sony A99 IIYstereomonoYYmicro2.0YYY
15.
 
Sony A68YstereomonoY-micro2.0---
16.
 
Sony A850Y----mini2.0---
17.
 
Sony A900Y----mini2.0---

It is notable that the S1 has a microphone port, which is missing on the K-S1. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Studio photographers will appreciate that the Panasonic S1 (unlike the K-S1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The S1 is a recent model that features in the current product line-up of Panasonic. In contrast, the K-S1 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the K-S1 was succeeded by the Pentax K-S2. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and Pentax websites.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Panasonic S1 or the Pentax K-S1 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Panasonic Lumix DC-S1:

  • More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Scores substantially higher (17 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.7 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (1.5 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (1.7 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/60p vs 1080/30p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.63x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 921k dots).
  • More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/6000s) to freeze action.
  • Faster burst: Shoots at higher frequency (9 vs 5.4 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 4 years and 5 months of technical progress since the K-S1 launch.

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Advantages of the Pentax K-S1:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More compact: Is smaller (121x93mm vs 149x110mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 459g or 45 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (70 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in August 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the S1 is the clear winner of the match-up (31 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

S1 31:06 K-S1

How about other alternatives? Do the specifications of the Panasonic S1 and the Pentax K-S1 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the S1 or the K-S1. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Panasonic S14.5/5+ +88/1004.5/54/5 Feb 2019 2,499 i
2.
 
Pentax K-S14/5....4.5/54/5 Aug 2014 749 i
3.
 
Canon R65/5+ +90/1004.5/55/5 Jul 2020 2,499 i
4.
 
Leica SL2-S4/5....4.5/54.5/5 Dec 2020 4,895 i
5.
 
Leica SL4/5..84/1004.5/54/5 Oct 2015 7,450 i
6.
 
Nikon D53004/5+ +79/1004.5/54.5/5 Oct 2013 799 i
7.
 
Nikon D6004/5+ +87/1005/54.5/5 Sep 2012 2,099 i
8.
 
Panasonic S54.5/5+ +88/1004.5/54.5/5 Sep 2020 1,999 i
9.
 
Panasonic S1R4.5/5..89/1004.5/54.5/5 Feb 2019 3,699 i
10.
 
Panasonic S1H....90/100.... May 2019 3,999 i
11.
 
Pentax K-S24.5/5....5/54.5/5 Feb 2015 749 i
12.
 
Pentax K-500......4.5/54.5/5 Jun 2013 549 i
13.
 
Pentax K-34/5..83/1005/55/5 Oct 2013 1,299 i
14.
 
Sony A99 II....85/1004.5/54.5/5 Sep 2016 3,199 i
15.
 
Sony A683/5....4/54/5 Nov 2015 699 i
16.
 
Sony A8503/5..75/100..4.5/5 Aug 2009 1,999 i
17.
 
Sony A900..+ ++ +4.5/55/5 Sep 2008 2,999 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Panasonic S1:
Check Amazon price
Pentax K-S1:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Panasonic S1 vs Pentax K-S1

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Panasonic S1 Pentax K-S1
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Leica L mount lenses Pentax K mount lenses
    Launch Date February 2019 August 2014
    Launch Price USD 2,499 USD 749
    Sensor Specs Panasonic S1 Pentax K-S1
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 35.6 x 23.8 mm 23.5 x 15.6 mm
    Sensor Area 847.28 mm2 366.6 mm2
    Sensor Diagonal 42.8 mm 28.2 mm
    Crop Factor 1.0x 1.5x
    Sensor Resolution 24 Megapixels 20 Megapixels
    Image Resolution 6000 x 4000 pixels 5472 x 3648 pixels
    Pixel Pitch 5.94 μm 4.28 μm
    Pixel Density 2.83 MP/cm2 5.45 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/60p Video 1080/30p Video
    ISO Setting 100 - 51,200 ISO 100 - 51,200 ISO
    ISO Boost 50 - 204,800 ISO no Enhancement
    Image Processor Venus PRIME MII
    DXO Sensor Quality (score) 95 78
    DXO Color Depth (bits) 25.2 23.5
    DXO Dynamic Range (EV) 14.5 13.0
    DXO Low Light (ISO) 3333 1061
    Screen Specs Panasonic S1 Pentax K-S1
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.78x 0.63x
    Viewfinder Resolution 5760k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 2100k dots 921k dots
    LCD Attachment Fully flexible screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic S1 Pentax K-S1
    Focus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/6000s
    Continuous Shooting 9 shutter flaps/s 5.4 shutter flaps/s
    Electronic Shutterup to 1/8000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium SDXC or XQD cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support UHS-II UHS-I
    Connectivity Specs Panasonic S1 Pentax K-S1
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.1 USB 2.0
    HDMI Port full HDMI micro HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Panasonic S1 Pentax K-S1
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type DMW-BLJ31 D-LI109
    Battery Life (CIPA)400 shots per charge410 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 149 x 110 x 97 mm
    (5.9 x 4.3 x 3.8 in)
    121 x 93 x 70 mm
    (4.8 x 3.7 x 2.8 in)
    Camera Weight 1017 g (35.9 oz) 558 g (19.7 oz)

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    You are here Home  »  CAM-parator  »  Panasonic S1 vs Pentax K-S1

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